What have the Welsh Conservatives and Plaid Cymru got in common?
Neither has ever sent a woman to Westminster. The Tories hope to change that next year but for Plaid Cymru it may be more of a challenge.
The party's shortlist for Carmarthen East and Dinefwr contains four would-be candidates linked by one thing - their gender.
Little wonder then that Plaid Cymru's parliamentary leader says it's "a huge embarrassment" the party has never had a woman MP.
Elfyn Llwyd said Plaid's failure to get a woman elected to Westminster was "very unfortunate" and something needed to be done about it.
The Meirionnydd Nant Conwy MP said the shortlist was a local matter and he did not know why no woman had made the final four in the race to succeed Adam Price.
But he added: "it is a huge embarrassment we have never had a woman MP. It is very unfortunate; we need to do something about it."